Wind turbine, is an electric device that converts wind energy into mechanical energy and mechanical energy into electrical energy. Broadly speaking, it is a kind of heat utilization engine with the sun as the heat source and the atmosphere as the working medium. For many centuries, wind power generators, like hydraulic machinery, have played an important role in the development of productivity as a power source to replace human and animal power. Wind power generation utilizes wind energy, a natural energy source, which is clean and non-polluting, and has become increasingly popular in recent years....